You can find wheel cylinders and wheel cylinder repair kits and many other parts for your truck at Rock Auto. They ship all over the world. At the top of the main page, click Menu, then Settings. Choose Australian Dollars (AU$) to show prices.
www.rockauto.comRock Auto is also a good source of information to identify parts, compare parts, and research part numbers. It's well laid out and has multiple pictures of the parts themselves which makes it easy to compare to your original part.
